Lock slider for one-sided separable fastener stringers



June 18, 1963 L. H. MoRlN 3,093,875

LOCK SLIDER FOR ONE-SIDED SEPARABLE FASTENER STRINGERS LOU/5 H MOR/N BY HTTORA/EY June 18, 1963 L. H. MORIN 3,093,875

LOCK SLIDER FOR ONE-SIDED SEPARABLE FASTENER STRINGERS Filed Aug. 9, 1961 2 Sheets-Sheet 2 INVENToR. Lou/5 H MOR/N H TTORNY United States Patent O 3,093,875 LOCK SLIDER FOR ONE-SIDED SEPARABLE FASTENER STRIN GERS Louis H. Morin, Bronx, NY. (125 Beechwood Ave., New Rochelle, N.Y.) Filed Aug. 9, 1961, Ser. No. 130,367 8 Claims. (Cl. 24205.14)

'Ihis invention :relates to sliders for use in coupling and uncoupling stiingers of separable fasteners and, particularly, to a thin walled lock slider structure of this type and kind applicable for use in conjunction with separable fastener stringers having the scoops disposed entirely on one surface of the stringers.

More particularly, the invention deals with a slider structure, wherein the lock element is disposed on the surface of the slider body opposed to the surface upon which the pull of the slider is mounted and, wherein, a bell crank-type member is pivotally mounted inthe slider body and includes spaced and offset arm and finger end portions operatively engaging the lock element and pull, respectively, and, further, wherein the inner surface of one wall of the slider body is recessed for reception of top stops commonly employed at free ends of a separable fastener stringer.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiment-s of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

FIG. 1 is an enlarged front view of one form of slider which I employ, with parts of the construction broken away and in `section and omitting the showing of the tapered wall structures of the slider to simplify this illustration.

FIG. 2 is I.a longitudinal central sectional view of the slider shown in FIGS. 1 and 3, with parts of the construction shown in elevation and parts of the construction being broken away and also indicating, in dot-dash lines, part of a fastener Stringer.

FIG. 3 is a rear view 4of the slider shown in FIG. 2, with part of the construction broken away and, again, omitting the representation of tapers irn the wall structure of the slider for sake of simplifica-tion.

FIG. 4 is a section on the broken line 4-4 of FIG. 2, with part of the construction shown in elevation.

FIG. 5 is a view, generally similar to FIG. 2, showing the back wall structure only of the slider and showing a modiiication.

FIG. 6 is a view, similar to FIG. 2, showing a slider adapted for use in conjunction with a different form of fastener stringer and also a modified form of lock element for the slider.

FIG. 7 is a rear view of .the slider as shown in FIG. 6.

FIG. 8 is a section on the broken line 8--8 of FIG. 6 and diagrammatically illustrating a modified form of fastener; and

FIG. 9 is a sectional view, generally similar to `FIG. 6, showing another form of slider, including a modified lock element and bell crank member for actuating said element.

Considering FIGS. 1 to 4, inclusive, 10 represents the slider body having an outer or front wall 11 and a rear or back wall 12 joined by a web 13 at the Wide end portion of said wall. The front wall 11 has longitudinally spaced raised platforms 14 and 15, to which a longitudinal plate 16 is secured by rivets `17 integral with the platforms passing through apertures 18 in the plate 16, as clearly illustrated in FIG. 2.

The platform :14 has on its inner surface a notch 19 which extends through the wall 11 and into the forward Patented June 18, 1963 edge of the web 13 for 4reception of a bell crank member or element 20. Between the notch 19 and the adjacent wall of the platform 15, the wall .11 has an aperture 21, in which an offset finger 22 of the bell crank operates, including the cross pin end 23 thereof.

At 24 is shown a pull having an aperture 25 therein to clear the platform 15` and the plate 16, the cross bar 26, at the end of the pull, operating in the space between adjacent surfaces of the platforms and upon the cross pin 23 in moving the bell crank member or element 20 into operative position, as later described. It will be understood that the plate 1-6 retains the cross b-arI end `26 of the pull against displacement from the slider.

The inner or rear wall 12 of the slider has, on its exposed surface, a recess 27 having an enlarged laterally extending end, as seen at 27 in FIG. 3 of the drawing. Mounted in this recess is a spring lock arm 28, the enlarged fixed end 29 of which fits snugly in the end 27 and is apertured :to receive two rivets 30 integral with the wall 12 of the slider, similar to the rivets 17. The arm 28, adjacent the fixed end 29 thereof, has an elongated aperture 31 to clear the pivot 32 of the member 20. The pivot 32 comprises laterally extending rounded pin portions, as clearly illustrated in FIG. 3 of the drawing, which seat in half-round recesses 33 in the wall 12 or the recessed portion 27 of the wall, as clearly illustrated in FIGS. 2 and 3 of the drawing. The wall 12 is also notched, as seen at 34, note FIG. 3 of the drawing, for reception of the member 20. The member 2o includes an offset lever 35 for actuating the arm 28, the lever 35 having a rounded end portion 36 operating upon the inner surface of the spring lock arm 28, as clearly seen in FIG.. 2 of the drawing. It will also appear that the lever 35 operates in an aperture 37 in the wall 12. The wall 12, adjacent the contracted end thereof, includes :another aperture 38, in which a downwardly offset flange end 39 on the arm 28 operates. Note FIG. 3 of the drawing. At one side of the free end of the arm 28 is a laterally and inwardly offset lock lug 40 having a bevelled wall portion 42, note -FIG. 2, for operatively eng-aging scoops of a one-sided separable fastener Stringer as, for example, the scoop 43, indicated in dot-dash lines in FIG. 2, 44 representing part of the Stringer tape to which the scoop 43 is attached. Another scoop is indicated at 43. This hevelled edge 42 facilitates free movement of the slider along the stringers in movement of the slider into Stringer closing position; whereas, 4the opposed edge 45 of the lug 40 operatively engages the scoops to prevent accidental opening movement of the slider along the stringers, as will be apparent from the diagrammatic showing of FIG. 2 of the drawing. Considering FIG. 4 of the drawing, here the angular offset of the lug 40 is illustrated to bring this lug into proper engaging position with the scoops of a Stringer in establishing the locking engagement.

The spring lock element 20 is tensioned to normally support the parts in the position shown in FIG. 2 of the drawing; whereas, in actuation of the pull 24, the member l20 will be moved on its pivot to force the arm 45 outwardly and move the lug 40 out of the channel of the slider for free movement of the slider along the stringers in opening the separable fasteners.

Side edges of the wall 12 of the slider have projecting flanges 46, generally of the contour illustrated in dotted lines in FIG. l of the drawing, `for guidance of .the scoops of the fastener into and through the slider body, as with other devices of this type and kind. The space between the edges of the flanges 46 and the wall 11, as at 47 FIG. 4, are for reception of the Stringer tapes as, for example, the tape 44 noted in FIG. 2 of the drawing. It will -ap pear, from a consideration of FIGS. l, 2 and 3 `of the drawing, that the walls 11 and 12 are both generally of the same peripheral contour, except that the wall 11 is shorter than the wall 12. It will also be apparent that the inner surface of the wall 12, at the wide end portion of the slider, includes recesses 48 for reception of the conventional end stops employed on stringers of the type and kind under consideration, so that these end stops can be housed within the boundaries of the slider walls, thus bringing the top stop ends of the stringers into close proximity with each other land also it Will be apparent that the slider will thus conceal these end stops when the slider is in fully closed position.

Considering FIG. 3 of the drawing, it lwill be apparent that the wall 12 of the slider or the aperture 38 therein, includesv a laterally offset extension 38 for reception of 'the offset lug 40.

In FIG. 5 of the drawing, I have shown a slight modification dealing primarily with the structure of the arm 28. In other words, the. ar-m 28', instead of having the aperture 31-therein, as clearly seen in FIG. 3, has a rounded raised portion 49 which extends over and concealsthe pivot 32 of the element 2Q. As the structure of the slider shown, in part, in FIG. 5 is otherwise identical with the slider as shown in FIGS. 1 to 4, inclusive, like references will identify like parts. The offset lug of the spring lock ann 28 is indicated at 48. With this construction, the arm 28' will operate to cover and conceal the element 20 and protect the element from reception of foreign particles which might otherwise enter the slider in the environment of the element 20.

In FIGS. 6, 7 and 8 of the drawing, I have shown another forrn of slider 5i), comprising spaced walls 51 and 52, respectively, joined at the wide end of the slider in a connecting web 53. With this structure, the wall 51 includes side flanges 54, generally similar to the flanges 46; whereas, the wall 52 has slightly extended side flanges 55, these flanges being spaced apart, as at 56, for reception of the Stringer tapes 57 of a pair of stringers, as diagrammatically seen in FIG. 8 of the drawing. To the surface lof the Stringer tapes 57 are suitably attached wire coils or links 58 fashioned to establish a coupling engagement with each other in securing the `two stringers against separation. The illustrationy of the `fastener in FIG. 8 is purely diagrammatic and is shown to simply illustrate engagement of a slider, such as Ethe sl-ider 50 with separable fasteners of this general type and kind.

It will also be noted, from a consideration of FIG. 8 of the drawing, that the channel of the slider is partially formed by the irregular contour 59 on the inner surface of the wall 51.,

f The wall 51 includes spaced platforms 60, 61 in the outer surface thereof, generally similar to the platforms 14, of FIG. 2, to which is attached by rivets a plate 62, similar to the plate 16. The walls 51, 52 have registering apertures 63 and 64 at the forward portion of the web 53, the aperture 63 extending through the platform 60 and operating in these apertures is an element 20', similar, in all respects, to the element 20, the element having the pin end 23', in conjunction with which the pull 24 operates. The element also hasa pivot end 32 pivoted on the wall 52, as with the structure in FIGS. 1 to 4, inclusive, the element also having a rounded end 36 for lactuating the spring lock arm 65. The arm 65 is generally similar to the arm 28, at least from the standpoint of having an aperture 66, similar to the aperture 31, al-

' though, here again, the arm 65 may be formed, as shown at 49, on the arm 28 in FIG. 5 of the drawing. The arm is gmouuted on the wall 52 by a single rivet 67. This mounted end portion of the arm has parallel sides 68, note FIG. 7, which fit beneath two inwardly extending flanges 69 integral with the wall 5,2, the flanges 69 retaining the element 65 in proper alinement on the wall 52 of the slider and'also aid in anchorage of the elements 65 on the wall 52.

The free end portion 70 of the spring lock arm 65 is reduced in width and has, at its opposed sides, inwardly extending slightly offset lock lugs 71 which operate in an aperture 72 formed in the wall 52, so as to extend into the channel of the slider and operatively engage the fastener devices 58, as diagrammatically seen in FIG. 8 of the drawing.

It will be understoodv that the outer surface `of the wall 52 of the yslider will be recessed to conform with the peripheral contour of the arm 65, this recess being modified by the inclusion of the alinernent flanges 69, as clearly illustnated in FIG. 7 of the drawing.

In FIG. 9 of the drawing, I have shown another form of thin wall slider, incorporating a modified form of lock arm actuating element and a modified form of lock arm, as well as a modification in thestructure of the slider body.

The slider of FIG. 9 is generally identified by the reference character 73 and includes spaced walls 74 and 75 joined at the wide end of the slider in a connecting web 76. The wall 74 includes, on its outer surface, projecting platformsy 77 and 78, generally similar to the platforms 6u, 61, `to which is attached a plate 79, retaining the pull 80 against displacement, as with the other structures described. The wall 75 includes side flanges 81, generally similar to the flanges 46, in defining the channel of the slider body. The inner surface of the wall 74 includes araised portion 82, .generally similar to the contour, as at v59 in FIG. 8 of the drawing, for adapting the slider to separable fasteners, to which the slider structure of FIG. 9 can be applied.

The Wall '74, at the forward portion of the web 76, is provided with an aperture 83 opening into the channel and .partially extending through the platform '77. The Wall 75 has an elongated aperture 84 therein which opens into the channel and extends over the web 76, the aperture including an offset rounded bearing portion 85, in which the offset pivot end 86 of a lock arm actuating element 87 operates. The element 87 has an angularly offset finger 88 operating in the aperture 83 and in conjunction with the pull 80 in movement of the element 87 intro operative position to move the spring lock arm 89 outwardly in movement of the lock lug end 90 of the arm out `of the channel of the slider body, the lug 90 ioperating in an aperture 91 at the contracted end =of the wall 75. The fixed end of the arm 89 will be generally of the contour of the end 29 of the arm 28 and includes two rivets in securing the same to the slider body or the wall 75 thereof, one of these rivets being indicatedrat 92. lThe arm 89 is also arranged in a recess 93 in the outer surface of the wall 75, generally similar to the recesses 27, 27', with the exception that the aperture 91 does not include an offset, as at 38. The element 87 includes an offset lever 94 arranged longitudinally in the aperture 84 andhas a rounded end 95 bearing :upon the inner surface of the arm 89.

With the several forms of construction shown, the lock arm operating elements are normally retainedV in the positions'illustrated fby the spring arm and, in actuation of the pull to move the slider along the stringers, particularly in separating the separable fasteners, the elements move the spring lock arm outwardly to remove the lock lugs from the channels of the sliders for free passage of the stringers through the slider body. In movement of thev slider in the Iopposite direction, the spring lock arm ratchets `over the scoops and, in this operation, the bell crank remains idle. vBy virtue of the structure and arrangement of the parts, sliders of thin `overall construction can be produced in adapting sliders of this type and kind for use on separable fastener stringers, wherein the coupling elements or scoops of the stringers are disposed on one surface only .of the Stringer tapes.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A slider of the character described comprising aV body having spaced Walls joined aty one end in a connecting web, one wall having flanged sides defining the channel of the slider body, a springV arm arranged upon one of said walls and including scoop engaging means at the free end of said arm extending through an aperture in said wall into the narrow end of the channel of the slider body, a pivoted spring arm actuating element movably mounted in the slider body at the forward portion of said web and pivoted adjacent to said spring, a pull movably supported in the other wall of the slider body and operatively engaging said element in flexing the spring arm away from the first named wall in movement of said scoop engaging means out of the channel of the slider body for free movement of the slider along a pair of stringers, said element having an oifset pull engaging end, and said element including an `offset lever having a rounded end operatively engaging said spring arm.

2. A slider as defined in claim 1, wherein said spring arm is apertured to clear the pivot portion of said element.

3. A slider as `dened in claim 1, wherein said spring arm includes a rounded portion arranged over and concealing the pivot portion of said element.

4. A slider as defined in claim 1, wherein, the slider body includes integral anges engaging sides of said spring arm in alining the arm on said body.

5. A slider Kof the character described comprising a slider body having spaced walls joined at a wide end portion of the slider body in a connecting web, slider lock means movably supported on one of said walls, a pull movably supported on the other wall, means for retaining the pull against :displacement from said last named wall, said walls at the inner portion of said web having alined apertures, a bell crank element piovtally supported at the first named wall of the slider body and operating in said apertures, one end of the element having an offset portion in operative engagement with said pull, the other end of said element including a lever extending from the pivot thereof and 'having a rounded end operatively engaging said slider lock means for movement of said means into inoperative position in one directional movement of the slider in the use thereof, and at least one wall of the slider body Ihaving flanged sides partially dening the channel of the slider body.

6. A slider as `defined in claim 5, wherein the flanged wall of the slider body includes on the surface of the wide lend portion thereof slider lock means receiving recesses.

7. A slider as dened in claim 5, wherein said lock means comprises an `elongated arm, one end of which is fixed to the slider body, the other end of the arm having a laterally and angularly offset lock lul :and the slider wall supporting said arm being apertured to receive said lug.

S. A slider as defined in claim 5, wherein said lock means comprises an elongated arm, one end of which is ixed to the slider body, the other end of the arm having a pair of angu-larly extending lock lugs, `and the slider wall supporting said arm being apertured to receive said lugs.

References Cited in the file of this patent UNITED STATES PATENTS 2,178,948 Brozek Nov. 7, 1939 2,313,579 Puc Mar. 9, 1943 FOREIGN PATENTS 831,423 France Sept. 2, 1938 1,075,066 Germany Feb. l1, 1960 

1. A SLIDER OF THE CHARACTER DESCRIBED COMPRISING A BODY HAVING SPACED WALLS JOINED AT ONE END IN A CONNECTING WEB, ONE WALL HAVING FLANGED SIDES DEFINING THE CHANNEL OF THE SLIDER BODY, A SPRING ARM ARRANGED UPON ONE OF SAID WALLS AND INCLUDING SCOOP ENGAGING MEANS AT THE FREE END OF SAID ARM EXTENDING THROUGH AN APERTURE IN SAID WALL INTO THE NARROW END OF THE CHANNEL OF THE SLIDER BODY, A PIVOTED SPRING ARM ACTUATING ELEMENT MOVABLY MOUNTED IN THE SLIDER BODY AT THE FORWARD PORTION OF SAID WEB AND PIVOTED ADJACENT TO SAID SPRING, A PULL MOVABLY SUPPORTED IN THE OTHER WALL OF THE SLIDER BODY SPRING ARM AWAY FROM THE FIRST NAMED WALL IN MOVEMENT OF SAID SCOOP ENGAGING MEANS OUT OF THE CHANNEL OF THE SLIDER BODY FOR FREE MOVEMENT OF THE SLIDER ALONG A PAIR OF STRINGERS, SAID ELEMENT HAVING AN OFFSET PULL ENGAGING END, AND SAID ELEMENT INCLUDING AN OFFSET LEVER HAVING A ROUNDED END OPERATIVELY ENGAGING SAID SPRING ARM. 